my 306 Pioneer sub (like yours) which i currently have in my room right now has a 3" pipe port tuned high like around 45HZ powered by about 150wrms car amp & i can feel the air out the port sitting in my chair about 9ft away !
My box volume though is 1.65 cu.ft
There is a desk nearby with some bills & a few have actually been blown to floor ......
Hey rovin i Didnt Know Ur Sub Was In Your Room Like Mine I Got The same 3" pipe Port tuned to About 28 hz but i Dont get much Air But Then again Im Only givin It somewhere under 110w still tryin to get an amp